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Brent, The batteries would have to be in a waterproof container if
going into saltwater. I believe even the APM batteries have a vent
otherwise they would explode at altitude. As noted in his book, George moved to the K-350 design
for a number of reasons…the cramped interior, minimal reserve buoyancy,
and statics issues if I remember correctly. Adding gear to the K-250
design only compounds the issue. Look how little freeboard Alec’s
sub exhibits (not to pick on him). You will find getting into and
out of a flooded K-250 an issue due to the tight nature of the interior
and conning tower. The domed hatch will open explosively due to the large
bubble that will be trapped there. If you didn’t drain all of the
air out of the rest of the conning tower but compressed it, you will be violently
expelled from the sub. Corrosion will be a nightmare inside your sub
after flooding it down 1 or more times, lock-out chambers of large subs
experience this issue despite being easier to access and preserve. I wanted to be able to lock out of a K-250 also when I
first viewed the plans for the sub back in 1974. Experience has taught me
that this is not a good idea. R/Jay From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent
Hartwig Hello Jay, Regards, |